. >>> the bombshell from britain. breaking news. the head of scotland yard resigns and it comes after another stunning arrest. rupert murdodo's protege this time. the woman who just days ago was trying to hold onto her job. where will the dominos end? >>> the heat wave. the dangerous heat spreading across the nation. more than three dozen states now on alert tonight. it's going to be a stifling week ahead. >>> home free? casey anthony out of prison tonight. a smile from the mother, but this is what she heard in return. >> caylee! caylee! >>> and, happy birthday. on the eve of nelson mandela's 93rd birthday tonight, we're one on one with the typist who is still his treasured friend. why that first meeting, what he told her and how he said it, changed her forever. >>> good evening. we begininhis sunday night with that dramatic ending. the u.s. versus japan in the final moments of women's world cup soccer in germany. it was a tense, hard-fought battle, so evenly matched.d. the u.s. playing for its third world title. japan, carrying the